公开(公告)号：US11996034B2

公开(公告)日：2024-05-28

申请号：US17634544

申请日：2021-04-15

Applicant: BOE Technology Group Co., Ltd.

Inventor： Li Xiao ,  Haoliang Zheng ,  Minghua Xuan ,  Hao Chen ,  Dongni Liu ,  Jiao Zhao ,  Seungwoo Han ,  Liang Chen ,  Qi Qi

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: Disclosed are a display panel, a control method for the same, and a display device. The display panel includes: M rows and N columns of pixel units, N current data lines sequentially arranged along a row direction, and N time-length data lines sequentially arranged along the row direction. Each pixel unit includes a pixel circuit, the pixel circuit including a current data terminal and a time-length data terminal. An ith column of the current data lines and an ith column of the time-length data lines are respectively located on two sides of an ith column of pixel units, the current data terminals of the pixel circuits of the ith column of pixel units are electrically connected to the ith column of the current data lines.

公开(公告)号：US11990083B2

公开(公告)日：2024-05-21

申请号：US17628380

申请日：2021-03-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Haoliang Zheng ,  Seungwoo Han ,  Qi Qi ,  Jing Liu

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233

Abstract: Embodiments of the present disclosure provide a pixel drive circuit, a method for driving the pixel drive circuit, and a display device. The pixel drive circuit includes: a drive sub-circuit, a write sub-circuit and a control circuit. The control circuit further is coupled to a light-emitting control signal terminal, a second scanning signal terminal and a second data signal terminal, and is configured to determine a duration of providing a driving signal to a to-be-driven element under control of a light-emitting control signal provided by the light-emitting control signal terminal and a second scanning signal provided by the second scanning signal terminal.

公开(公告)号：US11875734B2

公开(公告)日：2024-01-16

申请号：US17636897

申请日：2021-04-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Li Xiao ,  Haoliang Zheng ,  Minghua Xuan ,  Seungwoo Han ,  Hao Chen ,  Dongni Liu ,  Jiao Zhao ,  Liang Chen ,  Qi Qi

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3208

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/043 ,  G09G2320/045

Abstract: Disclosed are a pixel circuit and a drive method for the same, and a display panel and a drive method for the same. The pixel circuit is configured to drive a light-emitting element to emit light, including: a current control sub-circuit and a time-length control sub-circuit. The current control sub-circuit is electrically connected to a current data terminal, a scanning signal terminal, a reset signal terminal, an initial signal terminal, a light-emitting signal terminal, a first power terminal, a first node, and a second node, respectively. The time-length control sub-circuit is electrically connected to a first control terminal, a second control terminal, a time-length data terminal, a ground terminal, a light-emitting signal terminal, a high-frequency input terminal, and the first node, respectively.

公开(公告)号：US11587501B2

公开(公告)日：2023-02-21

申请号：US17509899

申请日：2021-10-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Dongni Liu ,  Li Xiao ,  Liang Chen ,  Hao Chen ,  Jiao Zhao ,  Jin Yang ,  Minghua Xuan

IPC: G09G3/32

Abstract: The present disclosure provides a display apparatus, a pixel circuit and a method of driving a pixel circuit. In one or more embodiments, the pixel circuit includes a driving transistor, a data signal module and a bias signal module. A first electrode of the driving transistor is connected with a first power signal terminal, a second electrode of the driving transistor is connected with a first terminal of a light emitting element, and the driving transistor includes a first control electrode and a second control electrode. The data signal module is connected with the driving transistor, a data writing signal terminal and a data signal terminal. The bias signal module is connected with the driving transistor, a bias writing signal terminal and a bias signal terminal, and is configured to adjust a threshold voltage of the driving transistor under control of the bias writing signal terminal and the bias signal terminal.

公开(公告)号：US11538410B2

公开(公告)日：2022-12-27

申请号：US17407147

申请日：2021-08-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Li Xiao ,  Haoliang Zheng ,  Liang Chen ,  Jiao Zhao ,  Seungwoo Han ,  Hao Chen

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit, a driving method thereof and a light emitting device, and relates to the technical field of display. The pixel circuit comprises driving sub-circuit comprising a control terminal, first terminal and a second terminal, driving sub-circuit being configured to control driving signal flowing through the first terminal and second terminal according to signal of control terminal; first capacitor comprising first pole and second pole coupled to control terminal of driving sub-circuit; first data writing sub-circuit configured to write first initialization signal to first pole of first capacitor in response to first scanning signal, write first data signal into driving sub-circuit in response to first scanning signal, so that signal of control signal of driving sub-circuit changes with first data signal; second data writing sub-circuit configured to write second data signal to first pole of first capacitor in response to second scanning signal.

公开(公告)号：US11263951B2

公开(公告)日：2022-03-01

申请号：US16336546

申请日：2018-08-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Zhichong Wang ,  Haoliang Zheng ,  Seungwoo Han ,  Guangliang Shang ,  Lijun Yuan ,  Xing Yao ,  Mingfu Han

IPC: G09G3/20 ,  G11C19/28

Abstract: Disclosed is a shift register unit, including a first input circuit, an input control circuit, a pull-down control circuit, a pull-down circuit, an output circuit and a second input circuit. The first input circuit includes a first input sub-circuit, and is configured to, under control of the first signal input terminal, cause a voltage of the first voltage terminal to be output to a second terminal of the first input sub-circuit and output to the pull-up node via a first terminal thereof. The input control circuit is configured to pull down a potential of the second terminal to the potential of a first power supply voltage terminal under control of an enable signal terminal.

公开(公告)号：US11250750B2

公开(公告)日：2022-02-15

申请号：US16126032

申请日：2018-09-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhichong Wang ,  Haoliang Zheng ,  Seungwoo Han ,  Guangliang Shang ,  Mingfu Han ,  Lijun Yuan ,  Xing Yao

IPC: G11C19/00 ,  G09G3/20 ,  G11C19/28 ,  G09G3/3266 ,  G11C7/02 ,  G09G3/36

Abstract: A shift register circuit, a driving method thereof, a gate drive circuit and a display device are provided. The shift register circuit includes an input sub-circuit, an output sub-circuit, a discharge sub-circuit and a noise reduction sub-circuit. The input sub-circuit is connected to an input signal terminal, a first power source terminal and a pull-down node, and configured to, under the control of an input signal, output a first power source terminal signal to the pull-down node. In the shift register circuit, the discharge sub-circuit may control the potential of the pull-down node to be an ineffective potential at the input stage, thereby preventing the noise reduction sub-circuit from affecting the potentials of the pull-up node and the output terminal under the control of the pull-down node, and ensuring normal output of the shift register circuit.

公开(公告)号：US11238824B2

公开(公告)日：2022-02-01

申请号：US16332902

申请日：2018-09-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lijun Yuan ,  Seungwoo Han ,  Guangliang Shang

IPC: G09G3/36

Abstract: The present disclosure relates to a pixel circuit. The pixel circuit may include a switch sub-circuit (10), a storage sub-circuit (20), and a driving sub-circuit (30). The storage sub-circuit (20) may include a first storage transistor (Tf1) and a second storage transistor (Tf2). Both the first storage transistor (Tf1) and the second storage transistor (Tf2) may be floating gate transistors. The storage sub-circuit (20) and the driving sub-circuit (30) may be configured to transmit a data signal from one of a plurality of data lines to a pixel electrode under control of the switch sub-circuit (10).

公开(公告)号：US11069274B2

公开(公告)日：2021-07-20

申请号：US16497199

申请日：2019-04-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhichong Wang ,  Seungwoo Han ,  Guangliang Shang ,  Haoliang Zheng ,  Lijun Yuan ,  Xing Yao ,  Mingfu Han

IPC: G09G3/20 ,  G11C19/28

Abstract: The embodiments of the present application provide a shift register unit and a method for driving the same, a gate driving circuit, and a display apparatus. Here, the shift register unit includes a first controlling sub-circuit, a first voltage dividing sub-circuit, a charging and discharging sub-circuit, and an outputting sub-circuit. Here, an output signal of the outputting sub-circuit is controlled by the charging and discharging sub-circuit. A first input signal and a second input signal input at a first input signal terminal Forward and a second input signal terminal Backward electrically coupled to the charging and discharging sub-circuit are pulse signals.

公开(公告)号：US10546546B2

公开(公告)日：2020-01-28

申请号：US15574867

申请日：2017-05-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Guangliang Shang

IPC: G09G3/36 ,  H01L27/12

Abstract: A pixel driving circuit for a display apparatus. The pixel driving circuit may include a first gate line, a second gate line, a data line, a first thin-film transistor, and a second thin-film transistor. A gate of the first thin-film transistor may be coupled to the first gate line. A source of the first thin-film transistor may be coupled to the data line. A drain of the first thin-film transistor may be coupled to a source of the second thin-film transistor. A gate of the second thin-film transistor may be coupled to the second gate line. A drain of the second thin-film transistor may be coupled to a pixel electrode.